Every year, mental illness and substance abuse directly cost employers an estimated $80 to $100 billion in America (with depression alone responsible for over 200 million lost workdays each year).
A recent report by beyond blue (an international workplace mental health organisation) found out that on average, every dollar spent in the workplace on mental health reaped a return of $2.30.

It follows therefore that mentally healthy workplaces benefit both the employee and the employer.